In many cities of China, if an ambulance is_______ in a traffic jam, police will respond to the emergency.
| A．held up | B．held back |
| C．held down | D．held out |
. Some students are looking for a new study method, _____ that can help them get higher test scores.
| A．it | B．which | C．that | D．one |
She said she learned a lot in her university courses, but she learned _______ in school-based professional development.
| A．as much twice | B．twice as much |
| C．much as twice | D．twice much as |
It was not until the age of 60 ______ William St
eig discovered his talent for writing children’s books.
| A．after | B．that | C．since | D．when |
To everyone’s surprise, such important and top urgent information has been ______, but the police are reported to be looking into the 
case.
| A．made out | B．checked out | C．let out | D．put out |
Tom Williams, _____scientist of the British Association for the Advancement of Science, is one of _____ kind of persons who can give you _____ hand whenever you are in trouble.
| A．a / a / a | B．a / the / a | C．the / a / a | D．the / the / the |